[tac_plus] Re: PAM authentication
Chetan_Jain at Monitor.com
Chetan_Jain at Monitor.com
Wed Jun 27 15:31:10 UTC 2007
I have tested it on the localhost where tacacs+ server is running.....
./tacacsplustest -user chetan -pass 123456 -key cooler
sending Authentication request...
Bad status in authentication response: 2, ''
sending Authorization request...
Received incorrect response type:
I am not sure what's wrong with the Server config or compilation.... btw i
am running FC5 on both server and network client
Thanks and Regards,
Chetan Jain
Network Team - IR,
Monitor Group,
131 Free Press House,
Nariman Point, Mumbai.
India
Chetan_Jain at monitor.com
Sent by: tac_plus-bounces at shrubbery.net
06/27/2007 01:45 PM
To
tac_plus at shrubbery.net
cc
Subject
[tac_plus] Re: PAM authentication
Logs on the Tacacs+ Server :
Jun 27 03:40:43 netmgr tac_plus[22460]: Version F4.0.4.10 Initialized 1
Jun 27 03:50:21 netmgr tac_plus[22462]: session.peerip is 10.115.111.215
Jun 27 03:50:21 netmgr tac_plus[23406]: connect from 10.115.111.215
[10.115.111.215]
Jun 27 03:50:22 netmgr tac_plus[23406]: pap-login query for 'chetan' ssh
from 10.115.111.215 rejected
/var/log/secure on the Network Client :
Jun 27 13:18:53 cjain-test sshd[27081]: Deprecated pam_stack module called
from service "sshd"
Jun 27 13:18:53 cjain-test sshd[27081]: pam_sm_authenticate: called
(pam_tacplus v1.2.9)
Jun 27 13:18:53 cjain-test sshd[27081]: pam_sm_authenticate: user [chetan]
obtained
Jun 27 13:18:53 cjain-test sshd[27081]: tacacs_get_password: called
Jun 27 13:18:53 cjain-test sshd[27081]: tacacs_get_password: obtained
password [H M?INCORRECT]
Jun 27 13:18:53 cjain-test sshd[27081]: pam_sm_authenticate: pass [H
M?INCORRECT] obtained
Jun 27 13:18:53 cjain-test sshd[27081]: pam_sm_authenticate: tty [ssh]
obtained
Jun 27 13:18:53 cjain-test sshd[27081]: pam_sm_authenticate: trying srv 0
Jun 27 13:18:53 cjain-test sshd[27081]: tac_authen_pap_read:
authentication failed, server reply was 2 (Login incorrect)
Jun 27 13:18:53 cjain-test sshd[27081]: Failed password for invalid user
chetan from 10.115.100.100 port 3610 ssh2
I am not sure why its showing some password which was not typed.... I
think its the issue with the pam_tacacs installed on the network client...
Can somebody suggest me what could be the issue......
Thanks and Regards,
Chetan Jain
Network Team - IR,
Monitor Group,
131 Free Press House,
Nariman Point, Mumbai.
India
john heasley <heas at shrubbery.net>
06/26/2007 10:42 PM
To
Chetan_Jain at Monitor.com
cc
tac_plus at shrubbery.net
Subject
Re: [tac_plus] PAM authentication
Tue, Jun 26, 2007 at 09:28:16PM +0530, Chetan_Jain at Monitor.com:
> Hi,
>
> I am trying to authenticate sshd service on a linux system through
> tacacs+....
>
> Tacacs+ server IP : 10.1.100.114
> Network Client : 10.115.111.215
>
> I am starting tacacs+ using tac_plus -d 8 -C
> /opt/WiKID/private/tacacs.conf
>
> # This file is dynamically written by the WiKID server
> # manual changes to this file will be overwritten almost immediately
>
> key = "cooler"
> accounting file = /opt/WiKID/log/tacacs.accounting.log
>
> user = chetan {
> default service = permit
> chap = cleartext "605992"
> pap = cleartext "605992"
> arap = cleartext "605992"
> login = des chRQBOhi.agrM
> }
>
> On the Network Client side....
>
> /etc/pam.d/tacacs :
>
> #%PAM-1.0
> auth sufficient /lib/security/pam_tacplus.so debug \
> server=10.1.100.114 secret=cooler encrypt
> account sufficient /lib/security/pam_tacplus.so debug \
> server=10.1.100.114 secret=cooler encrypt service=shell protocol=ssh
> session sufficient /lib/security/pam_tacplus.so debug \
> server=10.1.100.114 secret=cooler encrypt service=shell protocol=ssh
>
> /etc/pam.d/sshd :
>
> #%PAM-1.0
> auth sufficient pam_stack.so service=tacacs
> #auth required pam_stack.so service=system-auth
> auth required pam_nologin.so
> account sufficient pam_stack.so service=tacacs
> account required pam_stack.so service=system-auth
> password required pam_stack.so service=system-auth
> session sufficient pam_stack.so service=tacacs
> session required pam_stack.so service=system-auth
> session required pam_limits.so
> session optional pam_console.so
>
>
> Tacacs+ is not authenticating the credentials....
>
> /var/log/messages on Tacacs+ Server shows :
>
> Jun 26 11:48:15 netmgr tac_plus[28248]: Version F4.0.4.10 Initialized 1
> Jun 26 11:48:30 netmgr tac_plus[28258]: connect from 10.115.111.215
> [10.115.111.215]
> Jun 26 11:48:30 netmgr tac_plus[28258]: pap-login query for 'chetan' ssh
> from 10.115.111.215 rejected
>
>
> Can you help me what could be the issue......
start with enabling authentication debugging on the tacacs daemon. it
should
tell you why the login failed.
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